Method and apparatus for measuring surface temperature of an object

Abstract

This disclosure provides a method and apparatus for measuring a surface temperature of an object. The method includes: obtaining a temperature measured by a temperature sensing device at a current moment and at a moment previous to the current moment after the temperature sensing device contacts with a surface of a measured object for a set duration, the temperature sensing device being in conductive contact with the surface of the measured object; determining a temperature compensation factor at the current moment based on the temperature measured by the temperature sensing device at the current moment and the moment previous to the current moment; obtaining a correction factor of the temperature compensation factor; obtaining a static correction factor; and determining a surface temperature of the measured object at the current moment based on one or more of the temperature measured by the temperature sensing device at the current moment, the temperature compensation factor for the current moment, the correction factor for the temperature compensation factor and the static correction factor. This disclosure can accurately measure the temperature without damaging the measured object.

1 . A method for measuring a surface temperature of an object, comprising:
 obtaining a temperature measured by a temperature sensing device at a current moment and at a moment previous to the current moment after the temperature sensing device contacts with a surface of a measured object for a set duration, the temperature sensing device being in conductive contact with the surface of the measured object;   determining a temperature compensation factor at the current moment, based on the temperature measured by the temperature sensing device at the current moment and at the moment previous to the current moment;   obtaining a correction factor of the temperature compensation factor;   obtaining a static correction factor; and   determining a surface temperature of the measured object at the current moment, based on one or more of the temperature measured by the temperature sensing device at the current moment, the temperature compensation factor at the current moment, the correction factor of the temperature compensation factor, and the static correction factor.   
     
     
         2 . The method for measuring a surface temperature of an object as claimed in  claim 1 , wherein the step of determining a temperature compensation factor at the current moment based on the temperature measured by the temperature sensing device at the current moment and at the moment previous to the current moment, comprises:
 determining a first factor based on one or more of a specific heat capacity of the temperature sensing device, a density of the temperature sensing device, a volume of the temperature sensing device, a distance between a center of the temperature sensing device and the surface of the measured object, and a contact area between the temperature sensing device and the measured object;   determining a second factor based on one or more of the first factor and a conductivity coefficient of the temperature sensing device; and   determining the temperature compensation factor at the current moment based on one or more of the second factor, the temperature measured by the temperature sensing device at the current moment, the temperature measured by the temperature sensing device at the moment previous to the current moment, and a time interval between the current moment and the moment previous to the current moment.   
     
     
         3 . The method for measuring a surface temperature of an object as claimed in  claim 1 , further comprising:
 obtaining a correction factor of a medium in the presence of the medium between the measured object and the temperature sensing device, and the medium being in conductive contact with the surface of the measured object and the surface of the temperature sensing device respectively; and   determining the surface temperature of the measured object at the current moment based on one or more of the temperature measured by the temperature sensing device at the current moment, the temperature compensation factor at the current moment, the correction factor of the temperature compensation factor, the static correction factor, and the correction factor of the medium.   
     
     
         4 . The method for measuring a surface temperature of an object as claimed in  claim 1 , wherein ADC of the temperature sensing device has an acquisition accuracy of at least 8 bits. 
     
     
         5 . An apparatus for measuring a surface temperature of an object, comprising:
 a temperature measurement acquisition module configured to obtain a temperature measured by a temperature sensing device at a current moment and at a moment previous to the current moment after the temperature sensing device contacts with a surface of a measured object for a set duration, the temperature sensing device being in conductive contact with the surface of the measured object;   a temperature compensation factor determination module configured to determine a temperature compensation factor at the current moment based on the temperature measured by the temperature sensing device at the current moment and at the moment previous to the current moment;   a first correction factor acquisition module configured to obtain a correction factor of the temperature compensation factor;   a second correction factor acquisition module configured to obtain a static correction factor; and   an object surface temperature acquisition module configured to determine a surface temperature of the measured object at the current moment based on one or more of the temperature measured by the temperature sensing device at the current moment, the temperature compensation factor at the current moment, the correction factor of the temperature compensation factor, and the static correction factor.   
     
     
         6 . The apparatus for measuring a surface temperature of an object as claimed in  claim 5 , wherein the temperature compensation factor determination module is specifically configured to:
 determine a first factor based on one or more of a specific heat capacity of the temperature sensing device, a density of the temperature sensing device, a volume of the temperature sensing device, a distance between a center of the temperature sensing device and the surface of the measured object, and a contact area between the temperature sensing device and the measured object;   determine a second factor based on one or more of the first factor and a conductivity coefficient of the temperature sensing device; and   determine the temperature compensation factor at the current moment based on one or more of the second factor, the temperature measured by the temperature sensing device at the current moment, the temperature measured by the temperature sensing device at the moment previous to the current moment, and a time interval between the current moment and the moment previous to the current moment.   
     
     
         7 . The apparatus for measuring a surface temperature of an object as claimed in  claim 5 , further comprising:
 a third correction factor acquisition module configured to obtain a correction factor of a medium in the presence of the medium between the measured object and the temperature sensing device, and the medium being in conductive contact with the surface of the measured object and the surface of the temperature sensing device respectively; and   an object surface temperature acquisition module further configured to determine the surface temperature of the measured object at the current moment based on one or more of the temperature measured by the temperature sensing device at the current moment, the temperature compensation factor at the current moment, the correction factor of the temperature compensation factor, the static correction factor, and the correction factor of the medium.   
     
     
         8 . The apparatus for measuring a surface temperature of an object as claimed in  claim 5 , wherein ADC of the temperature sensing device has an acquisition accuracy of at least 8 bits. 
     
     
         9 . A computer device, comprising: a memory, a processor, and a computer program stored on the memory that can run on the processor, wherein the processor implements the method as claimed in  claim 1  when executing the computer program. 
     
     
         10 . A computer readable storage medium storing a computer program that implements the method as claimed in  claim 1 . 
     
     
         11 . The computer device as claimed in  claim 9 , wherein the processor implements the method as claimed in  claim 2  when executing the computer program. 
     
     
         12 . The computer device as claimed in  claim 9 , wherein the processor implements the method as claimed in  claim 3  when executing the computer program. 
     
     
         13 . The computer device as claimed in  claim 9 , wherein the processor implements the method as claimed in  claim 4  when executing the computer program. 
     
     
         14 . The computer readable storage medium as claimed in  claim 10 , wherein storing a computer program that implements the method as claimed in  claim 2 . 
     
     
         15 . The computer readable storage medium as claimed in  claim 10 , wherein storing a computer program that implements the method as claimed in  claim 3 . 
     
     
         16 . The computer readable storage medium as claimed in  claim 10 , wherein storing a computer program that implements the method as claimed in  claim 4 .